How to multiply exponents - ISEE Upper Level Quantitative Reasoning
Card 1 of 64
$(7-4)^{3}$=
$(7-4)^{3}$=
Tap to reveal answer
Subtract the numbers inside the parentheses first. This leaves you with 3, which you then raise to the 3rd power:
3times 3times 3=27
Subtract the numbers inside the parentheses first. This leaves you with 3, which you then raise to the 3rd power:
3times 3times 3=27
← Didn't Know|Knew It →
Evaluate:

Evaluate:
Tap to reveal answer
Any nonzero number taken to the power of 0 is equal to 1, so

Any nonzero number taken to the power of 0 is equal to 1, so
← Didn't Know|Knew It →
Multiply:

Multiply:
Tap to reveal answer
Use the FOIL method:






Use the FOIL method:
← Didn't Know|Knew It →
Simplify:

Simplify:
Tap to reveal answer
Based on the power rule, we know that in order to raise a power to a power we need to multiply the exponents, i.e.
.

Based on the power rule, we know that in order to raise a power to a power we need to multiply the exponents, i.e.
.
← Didn't Know|Knew It →
Simplify:

Simplify:
Tap to reveal answer
The Negative Exponent Rule says
.

The power rule says that, in order to raise a power to a power, we need to multiply the exponents, i.e.
.

The Negative Exponent Rule says .
The power rule says that, in order to raise a power to a power, we need to multiply the exponents, i.e. .
← Didn't Know|Knew It →
Simplify:

Simplify:
Tap to reveal answer
Based on the product rule for exponents in order to multiply two exponential terms with the same base, add their exponents:

So we can write:

Based on the product rule for exponents in order to multiply two exponential terms with the same base, add their exponents:
So we can write:
← Didn't Know|Knew It →
Evaluate:

Evaluate:
Tap to reveal answer
Based on the power rule for exponents we can write:

That means; to raise a power to a power we need to multiply the exponents. In addition, based on the product rule for exponents in order to multiply two exponential terms with the same base, we need to add their exponents:

So we can write:

Based on the power rule for exponents we can write:
That means; to raise a power to a power we need to multiply the exponents. In addition, based on the product rule for exponents in order to multiply two exponential terms with the same base, we need to add their exponents:
So we can write:
← Didn't Know|Knew It →
Evaluate:

Evaluate:
Tap to reveal answer
Based on the negative exponent rule we have:

which says negative exponents in the numerator get moved to the denominator and become positive exponents. And negative exponents in the denominator get moved to the numerator and become positive exponents. So we can write:

In addition, based on the power rule for exponents we can write:

That means; to raise a power to a power we need to multiply the exponents. We also know that when a fraction is raised to a power, the numerator and the denominator are both raised to that power. So we can write:





Based on the negative exponent rule we have:
which says negative exponents in the numerator get moved to the denominator and become positive exponents. And negative exponents in the denominator get moved to the numerator and become positive exponents. So we can write:
In addition, based on the power rule for exponents we can write:
That means; to raise a power to a power we need to multiply the exponents. We also know that when a fraction is raised to a power, the numerator and the denominator are both raised to that power. So we can write:
← Didn't Know|Knew It →
Evaluate:

Evaluate:
Tap to reveal answer
Based on the power rule for exponents we can write:

That means; to raise a power to a power we need to multiply the exponents. In addition, based on the product rule for exponents, in order to multiply two exponential terms with the same base we need to add their exponents:

So we can write:

in order to divide two exponents with the same base, we can keep the base and subtract the powers. So we get:

Based on the power rule for exponents we can write:
That means; to raise a power to a power we need to multiply the exponents. In addition, based on the product rule for exponents, in order to multiply two exponential terms with the same base we need to add their exponents:
So we can write:
in order to divide two exponents with the same base, we can keep the base and subtract the powers. So we get:
← Didn't Know|Knew It →
If
, find the value of:

If , find the value of:
Tap to reveal answer
Based on the power rule for exponents we can write:

That means; to raise a power to a power we need to multiply the exponents. So we can write:

Substitute
and we get:

Based on the power rule for exponents we can write:
That means; to raise a power to a power we need to multiply the exponents. So we can write:
Substitute and we get:
← Didn't Know|Knew It →
What is the value of this equation?

What is the value of this equation?
Tap to reveal answer
When an exponent is raised to another exponent, the exponents should be multiplied toghether. This will result in:



When an exponent is raised to another exponent, the exponents should be multiplied toghether. This will result in:
← Didn't Know|Knew It →
Which expression is equal to
?
Which expression is equal to ?
Tap to reveal answer
When exponent of a value is raised to another exponent, the values of the exponents are multiplied by each other.

2 is multiplied by 3, and so the exponent of x is 6.

When exponent of a value is raised to another exponent, the values of the exponents are multiplied by each other.
2 is multiplied by 3, and so the exponent of x is 6.
← Didn't Know|Knew It →
What is the value of
?
What is the value of ?
Tap to reveal answer
1 raised to any exponent will always be 1.
-1 will be equal to 1 when the exponent is even and will be equal to -1 when the exponent is odd.
Given that 323 is odd,
is equal to -1.
1 raised to any exponent will always be 1.
-1 will be equal to 1 when the exponent is even and will be equal to -1 when the exponent is odd.
Given that 323 is odd, is equal to -1.
← Didn't Know|Knew It →
What is the expression below equal to?

What is the expression below equal to?
Tap to reveal answer
When exponents are multiplied by each other, the powers should be added together. Meanwhile, numbers not raised to an exponent are simply multiplied by each other.
Therefore, the answer is
, because
, and
.
When exponents are multiplied by each other, the powers should be added together. Meanwhile, numbers not raised to an exponent are simply multiplied by each other.
Therefore, the answer is , because
, and
.
← Didn't Know|Knew It →
What is the value of
?
What is the value of ?
Tap to reveal answer
When one exponent is raised to another exponent, the values of the exponents should be multiplied together. Thus,
can be simplified to
, given that
.

When one exponent is raised to another exponent, the values of the exponents should be multiplied together. Thus,
can be simplified to
, given that
.
← Didn't Know|Knew It →
Simplify the following:

Simplify the following:
Tap to reveal answer
Simplify the following:

Let's begin by recalling two rules
-
When multiplying variables with a common base, add the exponents.
-
When multiplying variables with a common base, multiply the coefficients.

So, our answer is

Simplify the following:
Let's begin by recalling two rules
-
When multiplying variables with a common base, add the exponents.
-
When multiplying variables with a common base, multiply the coefficients.
So, our answer is
← Didn't Know|Knew It →
$(7-4)^{3}$=
$(7-4)^{3}$=
Tap to reveal answer
Subtract the numbers inside the parentheses first. This leaves you with 3, which you then raise to the 3rd power:
3times 3times 3=27
Subtract the numbers inside the parentheses first. This leaves you with 3, which you then raise to the 3rd power:
3times 3times 3=27
← Didn't Know|Knew It →
Evaluate:

Evaluate:
Tap to reveal answer
Any nonzero number taken to the power of 0 is equal to 1, so

Any nonzero number taken to the power of 0 is equal to 1, so
← Didn't Know|Knew It →
Multiply:

Multiply:
Tap to reveal answer
Use the FOIL method:






Use the FOIL method:
← Didn't Know|Knew It →
Simplify:

Simplify:
Tap to reveal answer
Based on the power rule, we know that in order to raise a power to a power we need to multiply the exponents, i.e.
.

Based on the power rule, we know that in order to raise a power to a power we need to multiply the exponents, i.e.
.
← Didn't Know|Knew It →